Carriage-lamp



(No Model.)

f1.0. CANNON. CARRIAGE LAMP.

Patented Jan. 9

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NiTan STATES PATENT Verica.

CARRIAGE-Ania SPECIFICATION forming part of Letters Patent No. 2'70,385,`dated January 9, 1883,

Application tiled July 5,18%?. (No model.)

To all whom it may concern:

Be it known that 1, FRED. C. CANNON, of New Haven, in the county of New Haven and State of Connecticut, have invented a new Improvement in Carriage-Lamps; andldohereby declare the following, when taken in connection with accompai'iying drawings and the letters of' reference marked thereon, to be a full, clear, and exact description ot the same, and which said drawings constitute part of this specification. and represent, in

Figure 1, a side view; Fig. 2,.a vertical cen tral section; Fig. 3, a side view of the connectiondetached; Fig. 4, the blank from which the connecting-plate is made; Fig. 5, niodiiication.

This invention relates to an improvementin the construction of carriage-lain ps, with special reference tothe top or portion of the lamp above the illaminating-chamber, and which is provided with openings for the escape of the products ot' combustion. made in several sections, one of which is seen in Fig. 1, and consists ofthe plate ,which forms the top of the combustion-chamber, a second plate, b, above, the two connected by a cylin-` drical section, d, the sides perforated, a cap,e, above, with a similar perforated secti0n,f, between it and the intermediate plate, I). The plates are struck from sheet-tin, the cylindrical section d constructed to setinto an openingin the top ot' the plate a and into a seat in the plate b above. The sectionftits in like manner into an opening in the plate b, and onto this the cap c is placed. The openings ai'ord an escape for the products of combustion, and the plates serve as a protector for those openings to prevent the extinguishing ofthe light within. These sections have usually been soldered together, depending upon such solder as a sole connection between the parts. Such soldering is an expensive part of' the lamp,- and frequently, when the dame is stronger than the lamp was intended to support, the heat from it will fuse the solder and cause the partial or entire separation ot' the parts.

The object of my invention is to avoid the use of solderand more permanently secure the parts together; and it consists in an internal clamping-plate constructed to engage the cap ofthe lamp7 with arms extendingfrom it down These tops are usually through the cylindrical portions andthe other` as seen in Fig. i-that is to say, provided the top of the lamp is square. The angles are cut oftA and the edge turned down, as in broken lines, Fig. 4, to form downwardlyprojecting springs m. the springs are bent down must be somewhat smaller than the opening into the cap at the bottom-that is, between the opposite lianges, ifi; but the springs are inclined outward, so as to cover a space greater than that distance between the anges, so that the plate may be pressed into the cap, the springs m yielding to pass the flanges ,andwhen they have passed those flanges fly outward, as seen in Fig. 2. The central portion of the clamping-plate l is constructed to form a seat for the top of the The size of the plate where the section referablvbwnakin ade iressionin the plate,which will enter that section. y To the under side of the clamping-plate Z a strip of tin or apiece of wire is attacheththe two'ends extending downward to form arms a a, and through the sections j' d the extreme ends ot' these arms, when the parts are drawn tightly together, are turned beneath the lower edge of the section h and onto the under side of the top a, as seen at r. This tirinly secures the parts together` The strip of tin or wire which forms the arms n u is riveted to the clamp l;

hence no solder is required to attach these' parts, and the top is made as complete and perfect, so far as utility is concerned, as it made in a single piece.

Should occasion require repair of any of the top portion of the lamp, the ends of the arms a u may be turned awayfrom their connection,

with the top i', and then the parts are easily separated,to be again united when the repairs are made.

Usually the lamp, the plate b, and the cap are square and the sections dfcylindrical; but they may be of other shape. It' the sections d IOO f are cylindrical, then, unless prevented, the parts would turn one upon the other. To avoid such turning', a drop of' solder may be applied at any ot' the joints; or, which I prefer, a tongue, s, may be made (see Fig). 5) in the openings in the pla-tes and a corresponding notch in the cylindi ical sect-ions; orother interlocking:r mechanism may be employed.

In lamps ol' this construction the greatest heat necessarily comes upon the cap. The spring-clamp, therefore, may only be used as :i means for clamping the cap to theother part ot' the lamp, those parts being soldered together, as heretofore; or the clamp may be se'- cured to the upper section only and serve as the inner plate for the cap, and also as a means i'or securing the cap in place, as the clampingplatc may be secured bet'ore the capis puton; or the securing' straps or connections may be used to connect the several parts without the spring-connectiou between the cap and elamping-plate-that is to say, the connection may be attached to the cap-as, for instance, the clamping-plate may be made without the spring and soldered to the cap. rIhenthe parts maybe secured by a` connection from the cap downward, as before.

l claiml. In a` carriage-lamp, the combination of the clamping-plate I, constructed with its springs m, with the cap e, constructed to receive the springs ot' the clamping-plate, substantially as described.

2. 1n a carriagelamp, the clamping-plate l, constructed with its springs m to engage the cap, and connections extending' i'rom the clamp ing-plate downward and secured within the top, substantially as described.

3. In a carriage-lamp, the cap and several sections which compose the top, combined with a clami'iing-plate, l., constructed with springs on. to engage the cap and connections from said clamping-plate downward within the lamp to secure the said parts together, substantiallyY as described.

4. A carriage-lamp constructed with the arms or connections n n, extending from the cap downward to secure the parts together, substantially as described.

FREI). (j. (EANNON.

\Vitnesses:

JOHN E. EARLF., L. D. KnLsnv. 

